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| Injecta Course |
| Down with rising damp! Injecta Course has an alternative to messy and expensive damp course replacement. |
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Drummy render and bubbly, peeling paint are sure signs of rising damp. We looked at a house that was about 50 years old with a damp course that had broken down.
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One way to rectify the problem is to dig out the mortar between a couple of rows of bricks and install a new damp course. But this is messy, time-consuming and expensive. The owners of this house opted for a chemical treatment called Westox, which effectively turns one course of bricks into a barrier against further rising damp.
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The first stage of any damp-proofing treatment is to determine how far the moisture has spread. If it is detected any higher than a metre, the problem could be caused by a broken pipe or water seeping in from outside. The crumbling plaster then has to be chipped off.
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Because the damp had moved so far up the wall in the example we looked at, the plaster was chipped off to a height of about a metre. Next, 10mm holes were drilled into the bricks along the lower course. Hollow metal rods, or lances, were inserted into the holes. The chemical treatment, a type of silicone, is pumped in under pressure and absorbed by the bricks.
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When the bricks are saturated, the procedure is repeated for the length of the course. It takes about 24 hours for the solution to fully penetrate the bricks and mortar, and two weeks for the bricks to dry completely.
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The silicone will stop moisture moving up the wall so then it can be re-rendered and painted.
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More Info
The Westox Chemical Dampproof course system is installed by Injecta Course. For more information about Westox contact Injecta Course: Ph: 0412 722 211
or Injecta Course Northern Suburbs 0412 722 211.
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Disclaimer
All Fact Sheets and other material on the Our House website are provided as a general information service only and should not be relied upon as a substitute for the advice of a properly qualified tradesman. Neither ninemsn nor its licensors (including the Nine Network) assume or accept any responsibility for, and will not be liable for the accuracy or appropriate application of any information whatsoever in any Fact Sheet or other material on the Our House web site. Your use of the Our House web site is governed by this disclaimer and the ninemsn's Terms of Use.
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